There are many ways to identify Karen's watch. Here are four common recognition techniques: 1. Watch glass: Nowadays, brand watches are generally made of sapphire. Many people say: to judge whether it is sapphire or not, just drop a drop of water on the table. It's not that sapphire can drip, but that sapphire can't drip. In fact, this method is not correct, because coated glass and water droplets will not flow away. It is understood that there is a special tool for identifying gems, that is, the "thermal conductivity meter" for measuring gems, which can detect the fineness of sapphires. Using such a tool, the fake sapphire will show its true colors. In addition, we can also see whether there is an antireflection film on the watch glass. Generally, there are real watches, which will not reflect light even under strong light. Because this treatment process will increase the cost, the fake watch will not be coated with antireflection film, let alone double-layer coating, in order to obtain greater benefits. Therefore, we can know that the watch glass is seriously reflected under strong light, and even if it doesn't drip, it is fake. 2, look at the trademark: trademark LOGO Generally, the watchmaking factory of real watches has made great efforts in logo carving. So this fake watch is the most exposed place, and we can observe it with a magnifying glass. At present, there is a kind of jewelry appraisal using a 40-fold magnifying glass with LED, which can be seen clearly. 3, look at the handle technology: this part of the handle is the easiest place to judge the fake watch. The handles of fake watches are generally purchased from the outside, and almost all of them are made from a mold. They all use the same process, whether it is chrome plating or gold plating, there is always a difference in depth. 4, look at the weight: generally, the materials used in real watches are relatively pure, especially precious metal materials, which are more oppressive in the palm of your hand, while the materials of fake watches will be adulterated in order to save costs, so the weight is relatively light. The above is just part of Karen's watch recognition skills. Please be careful.